2.4.7. Check and adjustment of turns of idling

Check

PERFORMANCE ORDER
1. Check and, if necessary adjust an accelerator cable (see subsection 9.8).
2. Start the engine and warm up it up to the normal working temperature. Switch off everything electric consumers.
3. Using a tachometer for diesel engines, check idling turns.

Adjustment

Engines with pneumatic adjustment of turns of idling

PERFORMANCE ORDER
1. Weaken a lock-nut on the top part of the vacuum chamber of turns of idling which is fixed on a back part of the fuel pump.
2. Turning the vacuum chamber a wrench, establish the required idling turns. Tighten a lock-nut.

Engines with ELR management of idling turns

PERFORMANCE ORDER
1. Disconnect the electric socket from the electromagnetic executive mechanism which is attached on a back part of the fuel pump.
2. The screw of adjustment of turns of idling is located over the case of the electromagnetic executive mechanism. Weaken a lock-nut and, rotating the adjusting screw, establish the required idling turns. Tighten a lock-nut and connect the electric socket.

Engines with EDS management of idling turns

PERFORMANCE ORDER
1. Disconnect the electric socket from the electromagnetic executive mechanism which is attached on a back part of the fuel pump.
2. The screw of adjustment of turns of idling is located over the case of the electromagnetic executive mechanism. Weaken a lock-nut and, rotating the adjusting screw, establish the required idling turns. Tighten a lock-nut and connect the electric socket.
3. Turns of idling can also be changed by shift of a crossing point in a special nest.
4. The nest is established in office of accessories in the back right side of a motor compartment.
5. For change of provision of a crossing point take it from a nest and establish in new situation which is designated by figures from 1 to 7 on a back part of a nest.
6. Situation No. 1 corresponds to 600 rpm, and situation No. 7 corresponds to 700 rpm.